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41. 发明专利

JPS5852185B2 JPS5852185B2 - 失效
公开(公告)号：JPS5852185B2
公开(公告)日：1983-11-21
申请号：JP13380978
申请日：1978-11-01
申请人： Ainoichi Pungasu Toomu
发明人： TOOMU AINOICHI PUNGASU
IPC分类号： G01R1/28 , G05F1/445 , G05F1/56
CPC分类号： G05F1/445 , G05F1/56

42. 发明专利

JPS58118966A CHECKING CIRCUIT OF POWER SOURCE VOLTAGE 失效
公开(公告)号：JPS58118966A
公开(公告)日：1983-07-15
申请号：JP165182
申请日：1982-01-07
申请人： SANYO ELECTRIC CO , TOKYO SANYO ELECTRIC CO
发明人： KATOU SHIYOUZOU
IPC分类号： H02J7/00 , G01R1/28 , G01R1/44 , G01R19/155 , G01R19/165 , G01R19/32 , H02H3/20
摘要： PURPOSE:To obtain a stable constant-voltage characteristic, and to scarcely cause a measuring error, by connecting in parallel two systems of series circuits consisting of a resistance and a light emitting diode, connecting a load in parallel with one light emitting diode, and setting the light emission start voltage of the other light emitting diode to high voltage. CONSTITUTION:A series circuit of a resistance 12 and an LED13, and a series circuit of a resistance 15 and an LED16 are connected in parallel, a load circuit 17 is connected to the LED16 in parallel, and as for the LED13, its light emission start voltage is set higher than the voltage of the LED16. Also, in an area (a), a current flows to the load circuit 17, and does not flow to the LEDs 13, 16. When the voltage is in an area (b), the LED16 is light emitted. Also, when the voltage is in an area (c), drop voltage in the forward direction of the LED16 shows a stable constant-voltage characteristic. When the voltage further rises and exceeds the light emission start voltage of the LED13, the LED13 is light emitted to display that the constant-voltage is supplied to the circuit 17.

43. 实用新型

JPS5857965U 失效
公开(公告)号：JPS5857965U
公开(公告)日：1983-04-19
申请号：JP15380181
申请日：1981-10-16
IPC分类号： G01R1/28

44. 发明专利

JPS57135373A POWER SUPPLY DEVICE FOR MEASURING ELECTRIC POWER APPARATUS 失效
公开(公告)号：JPS57135373A
公开(公告)日：1982-08-20
申请号：JP2105881
申请日：1981-02-16
申请人： SHOWA ELECTRIC WIRE & CABLE CO
发明人： KASAHARA TOSHIO , AIHARA MITSUGI
IPC分类号： G01R1/28 , G01R27/00 , G01R35/00
摘要： PURPOSE:To output a sine wave and a triangular wave of extremely-low frequency in an ideal shape from an output terminal, by analyzing a waveform with a calibration part as to whether an output waveform has an ideal shape or not, so as to compensate a characteristic of a circuit in accordance with said result. CONSTITUTION:A signal wave obtained from a signal wave forming part 1 containing a computer is modulated 2 by a carrier wave having a sufficiently high frequency. This modulated signal is amplified 3, and after that, is detected by a demodulating circuit 4, and an output signal is obtained in an output terminal 5. Also, an output signal of the demodulating circuit 4 is applied to a calibration part 7 through a feedback circuit 6, and calibrate and controls an output signal waveform of the signal wave forming part 1 so that an output signal from the circuit 6 becomes a desired waveform. In this way, a waveform is analyzed by the calibration part 7 as to whether the output signal waveform has an ideal shape or not, and a characteristic of a circuit is compensated in accordance with said result, therefore, voltage having an optional waveform being nearly ideal is obtained, and an electric characteristic of an electric power apparatus is measured with high accuracy.

45. 发明专利

JPS57112087A JOSEPHSON VOLTAGE STANDARD DEVICE 失效
公开(公告)号：JPS57112087A
公开(公告)日：1982-07-12
申请号：JP18759780
申请日：1980-12-29
申请人： NAGAOKA GIJUTSU KAGAKU DAIGAKU
发明人： YAMASHITA TSUTOMU
IPC分类号： G01R1/28 , G05F3/02 , H01L39/22
摘要： PURPOSE:To generate a constant DC voltage which has a wide operating current range easily with high stability by a method wherein a direct current and a high frequency current are supplied directly to one Josephson-element in a super- conducting closed circuit. CONSTITUTION:One Josephson element J1 and N Josephson elements J2 are connected in parallel to compose a super-conducting closed circut. In this closed circuit, when a direct current I and a high frequency current i are supplied simultaneously to the parallel junction point of the element J1 and the elements NXJ2, a relation Y1+NXY2=O is realized, where Y1 and Y2 are the phase of the current through the element J1 and the elements NXJ2 respectively. And the phase roration of the current through the elements J2 is slower than that of the current through the element J1 by 1/N of that value. Then the DC constant voltage generated by the elements J2 has a wide current range corresponding to the integer N. Thus, by increasing the number N of the elements J2, the constant DC voltage which has a wide operating current range can be generated easily with high stability.

46. 实用新型

JPS56116673U 失效
公开(公告)号：JPS56116673U
公开(公告)日：1981-09-07
申请号：JP1453180
申请日：1980-02-06
IPC分类号： G01R1/28

47. 发明专利

JPS5636615B2 失效
公开(公告)号：JPS5636615B2
公开(公告)日：1981-08-25
申请号：JP3978473
申请日：1973-04-07
IPC分类号： G01R1/28 , H03M1/12

48. 发明专利

JPS5674666A VOLTAGE LEVEL GENERATOR 失效
公开(公告)号：JPS5674666A
公开(公告)日：1981-06-20
申请号：JP15266879
申请日：1979-11-26
申请人： NIPPON ELECTRIC CO
发明人： TANAKA SADAAKI
IPC分类号： G01R31/26 , G01R1/28 , G01R31/28 , G01R31/3183
摘要： PURPOSE:To measure various kinds of input voltage without interruption by generating a voltage level by use of a memory of selective information, a voltage level data memory part, and a digital-analog converter. CONSTITUTION:The voltage level generator 5 which has been connected to the control part 2 of the central processing unit 1 is provided with the momory 12, the memory 13 and the digital-analog converter 11, and its output is connected to the pin electronics. When a test pattern Pn of the word address (n) is being read out from the pattern generation part 4, the contents of the selective information b1-bm indicated by the word address (n) in the same way are applied to the memory part 12, and the voltage level of the digital-nanlog converter 11 is decided. In this way, it is possible to vary the voltage level of the digital-analog converter 11 by the test pattern in accordance with the selective information b1-bm.

49. 实用新型

JPS55175263U 失效
公开(公告)号：JPS55175263U
公开(公告)日：1980-12-16
申请号：JP7644279
申请日：1979-06-04
IPC分类号： G01R1/28 , H01L39/22

50. 实用新型

JPS55164563U 失效
公开(公告)号：JPS55164563U
公开(公告)日：1980-11-26
申请号：JP4073379
申请日：1979-03-30
IPC分类号： G01R1/28 , G01R19/25

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